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NeX [460]
3 years ago
13

Find the radius of the circle which has the same area

Mathematics
1 answer:
Neko [114]3 years ago
4 0

Answer:

13 cm

Step-by-step explanation:

We can get the answer in the following way:

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A solid oblique pyramid has a square base with edges measuring x cm. The height of the pyramid is (x + 2) cm. Which expression r
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we know that

the volume of a solid oblique pyramid is equal to

V=\frac{1}{3}*B*h

where

B is the area of the base

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in this problem we have that

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B=b^{2}

where

<u>b=x\ cm</u>

so

B=x^{2}\ cm^{2}

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substitute in the formula of volume

V=\frac{1}{3}*x^{2}*(x+2)\\ \\V=\frac{1}{3}*[x^{3} +2x^{2}]\ cm^{3}

therefore

<u>the answer is</u>

V=\frac{1}{3}*[x^{3} +2x^{2}]\ cm^{3}

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